Method and apparatus for placing road beds or foundations in sink holes



Dec: 22, 1931. C s, D, SOLOMQN 1,837,498

METHOD AND APPARATUS FOR PLACING ROAD BEDS OR FOUNDATIONS IN SINK HOLES Filed Deo. 22, 1930 2 Sheets-Sheet 1 v INV-ENTOR Samul D. Solomon ATTORNEYS.

Dec. 22, 1931. s. D. SOLOMON METHOD AND APPARATUS FOR PLAGING 'ROAD BDS OR FOUNDATIONS IN SINK HOLES 2 Sheets-Sheet A2 Filed Dec. 22', 1950 l INVENTOR Samuel D. olomon J v A www-rma@ ROAD BED :manueel Dec. 272, 1931 'UNITED' S'TArEs 'PATENT or-'vlucv D. SOLOMON, OF LANSING, MIEIIVGAN METHOD APMATUSVIFOR PLACIN G BEDS B FOUNDATIONS IN SINX HOLES Application mea December 22, v1930. 'serial my. 503,881.

The objects of the invention are: First, to effectively displace the 'muck from under a dirt filling or from beneath any foundation. Y l Second, to provide improved hydraulic means for the purpose.

Third, to provide an effective apparatus for the purpose;' v y l Objects pertaining to details and economies ,10 of construction and operation will appear from the description to follow. I` accomplish the objects of rny` invention by the devicev shown in lthe accompanying drawings, in which: Fig. 1 is ,a cross sectional view of a highway under construction, showing the method of displacing the muck from beneath the fill where the road is, for instance, being built v.over a marshy strip. Fig. 2 is a detail longitudinal lsectional view showing a road bed being laid across v a muck sink hole. l

Fig. 3 is a diagrammatic view showing how the muck is removed from under a lill.

Fig. 4 is a fragmentary view partially in section of one' of the hydraulic and compres# sion devices.

The parts will be identified by their numerals of reference which are the same all' the views. f

1 is a roadway fill. 2 is-thevmuck layer which constitutes the soft, yielding material causing a sink hole. 3 is a hydraulic casing, preferably of three-inch pipe, which is inserted down through the fill to the muck layer beneath. 4 is a removable cap therefor provided? with a stuffing box 5, 6 is a water pipe extending through the stung box 5 and provided with perforations, 7 at the lower end.

8 is a header pipe for delivering water under pressure, preferably' from 60 to 100 lbs., the

pressure being supplied directly by a pump (not shown) or from any suitable water main. The header is preferably connected by compression hose 9 through elbow 10 to the hydraulic compression pipes 6. In carrying out my improved method, Elling dirt is deposited in niass and bulk considerably above the road level line. After it has had time to settle, I drive through the filling dirt the pipes 3 and introduce into lthem the .hydraulic pipes 6, putting on pressure so that water flows freely `out through the perforations 7 and rises through the pipe 3 carrying with it the suspended muck until there is a cavity 11 formed around the bottom of each one of the pipes. The perforated part of each pipe 6 projects .below the corresponding pipe 3. l f

The caps 4 are then put in place and screwed down tightly, sealing the casing and maln'ng a yjoint that is water tight. Pressure is then turned on to the entire group of pipes, l

the pressure being from 60 to 100 lbs. per square inch. The casings are rmly retained in the filling dirt, the muck is gradually completely saturated' with waterand becomes semifluid, and the weightof the filling dirt compresses the same laterally so that it is forced out at-each side of the road or at each side of the fill. Dirt is then added until thel fill has dropped down tothe bed rock through the muck, and thus has become stable.

The same method can be used for a foundation that it has-been necessary to place 0n a muck sink hole or base.

The casingsshould be inserted four to six` feet apart or further in all directions so as to deliver a large quantity oughly soften the muck.

I have described my invention in its preferred form. I desire to claim it specifically as shown and also broadly as pointedout in the appended claims. v

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1.- The method of displacing muck under a ll or a foundation, consisting in introducing a casing downwardly so that it is open and extends into the muck and its upper end extends above the filling, introducing water under pressure through a pipe perforated at the bottom to displace and flush out a quantity of the muck below the end of the casing, and rthen closing the casing around the pipe and applying heavy pressure to the soaked muck to cause it to move and llow from underv the fill or foundation.

2. The method of displacing muck from of water tol thor- Jhe'avy pressure to 'cause .its lateral under a fill or a foundation, consisting in saturating the 'muck with water and a plyijng ow and displacement from beneath the fill or foundation.

.3. In -an apparatus for ldisplacing muck from a sink holel beneath a road bed or ,.Eoun-` vdation, the combination of a casing, a hydraulic pipe perforated at its lower end to be 1ntroduced intosaid casing with the perforated A part' of said pipe projecting below the cas' v ing, a removable cap for sealing the upper vend of said casing,l and means for delivering A water under pressure to said hydraulic pipe.

v ing filling or foundation material upon the 4. The method of displacing muck from under a lill or foundation consisting of placmnck, passing water conduits through the illin material into the muck below the same, and 'schargng-water undef* pressure into the muck whereby it is reducedto semi-fluid Y flowing conditio 5.- The method ofl displacing muck under alfill or foundation consisting of placing the fill or foundation material upon the bed of muck and introducing` water under 5 pressure into the muck below the fill whereby it is rendered semi-fluid and the weight ofthe' filling material .acts to displace the muckbe neath thefill. v, In 'tness whereof I have hereunto set my i l D. SOLOMON.

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